Sprinkler.



. CAMPBELL.

SPRINKLER.

APPLICATION FILED PEB.I7. 1908.

Patented Nov. 30, 1909.

71 061 (/65 6'56 a: wzwmf JAMES WINTHROP'CAMPEEL E PROVIDENCE, RHODE ISLAND.

SPRINKLER.

' Specification of Letters Patent. P t t 30, 1909,

Application filed February 17, 1908. Serial No. 416,189.

To all yvhom it may concern: I 1

Be it known that I, JAMES WINTHROP CAMPBELL, a citizen of the United States, re-

' siding at Providence, county of Providence,

State of Rhode Island, have invented certain new and useful Improvements in Sprinklers, of which the following is a specification.

This invention relates to sprinkler nozzles or heads and particularly to nozzles for delivering fluids in a sheet or spray over a surrounding area for the purpose of irrigation or other uses in which this sort of de-' vice is or may be, used.

In the constructlon of a nozzle or, a head of this sort much diiiiculty has been eXperi-.

enced in securing a means of delivery in which the flow or surge of water would be received at its point of delivery by means capable of withstanding varieties of pressure and water in various states of sedimem tary suspension and still provide fora uniform delivery adjustable to the form desired and under conditions which would make the cleansing of the head forthe most part unnecessary but when necessary capable of being done promptly and easily.

To this end I have devised my present invention which consists in the formation of the parts of the head in such a manner and in so relating the parts as to secure-the 'results above suggested as desirable.

In the specification which follows and in the drawings which form a part of it I have set forth an embodiment of my invention illustrative of its general principles and shown as particularly adapted to the delivery of water in an irrigation system in which a movable sprinkler arm having a plurality of sprinkler heads is employed in connection with the delivery points of a symmetrically disposed water system laid under ground in the land to be cultivated.

In this specification reference to the several parts is made throughout text and drawing by a system of uniform reference numerals indicating corresponding parts throughout.

In the drawing Figure 1 is a plan view of the upper face of my sprinkler head, Fig. 2 is a vertical section on theline 22, Fig. 1, Fig. 3 is an elevation of the lower end of the sprinkler head, Fig. 4 is a section on the line M, Fig. 2, Fig. 5 is a central Vertical section of the tubular plug, and Fig. 6 is a vertical section of the shell with plug removed.

. 1 is a cup shaped shell having'a-bcveled upper l1p 1 having a tubular connecting pipe 3 at its lower end, said .pipe being chambered at '2 directly below the cup of the shell and externally threaded below said cup for union with the pipe of a sprinkler arm.

The chamber 2 is internally threaded at 2 to receive the lower end of a tubular plug 4 which is correspondingly threaded at- 5 to engage with the threads on the wall of the chamber 2. The walls of the tubular plug are preferably made of a thickness equal to the increased bore of a chamber 2 so that when the plug is in place the bore of the tubular plug will correspond with the bore of the pipe end 3 of the shell 1. The upper end of the tubular plug is formed with a flaring flange 15 surrounding a cup shaped cap Gwhich is formed with a central aperture 6 passing through the bottom of the cup 6 closed by a threaded stem 7 having a flange head 8 and entering a cross web 9 which is tapped to receive its threaded end. g

11 and 12 are broad delivery openings formed on each side of the tubular plug and 13 are look screws passing through the walls of said chamber to lock the plug where it is adjusted relative to the shell by means of the screw threads 5 and 2 I form on mysprinkler, wrench holds 16 and 17 on the cap of the screw plug and on the shell or casing, so that the parts may be turned and relatively adjusted with readiness at all times.

The operation of my device is as follows: The set screws 13 are slacked and the plug 4.- screwed in or out of the shell 1 untilthe surrounding flange 15 is properly positioned with respect to the upper end of the cup shaped portion of the shell 1 to allow the upwardly deflected stream which arises within the cup of the head to'escape laterally after striking against the lower side of said deflecting flange 15. This affords a broad circular spray delivered in a thin sheet which, while reaching with, its outer edge the circumference of a circle of considerable diameter, will deposit within said circle an abundance of moisture. By adjusting the stem 7 relative to the head 6 of the screw plug 4 widening or throttling the passage through the head of the plug, a second stream is delivered within the cup 6 but directed in lines more nearly parallel with the direction of the Water entering the sprinkler head. This secondary stream, therefore, will arise in a less divergent sheet than that first described and will deliver a body of water which can be made to fall by the relative adjustment of the parts up )n that portion of the surrounding space wine "1- receives the least of the water delivered by the main spray. It will be noted that the entering water finds free access by reason of the uniformity in bore of the plug 4 and the connecting end 3 of the head and the impact of the inflowing stream is received internally of the plug and delivered laterally therefrom against the cup shaped walls of the shell of the head where it is swirled upward against the deflecting flange 5 of the cap 6 of the plug before escaping through the opening between the flange and the upper edge of the cup. It will thus be seen that the part receiving the impact of the infiowing water is a removable, replaceable member, capable of easily being taken out to clean and replaced if worn or damzwed.

Obviously various changes might be made in the exact form and arrangement of the parts herein shown in the embodiment under discussion without departing from the spirit of my invention.

What I therefore claim and desire to secure by Letters Patent is:

1. A device of the class described comprising a spherically formed shell having an inlet at one end and an outlet at the other end, a plug passing through said shell and having a longitudinal bore of the same diameter as the inlet,. and meansfor adjusting said plug in alinement with said inlet.

2. A device of the class described comprising a spherically formed shell having an inlet at one end and an outlet at the other end, a plug passing through said shell and having a longitudinal bore of the same diameter as the inlet, and means for adjusting said plug in alinement with said inlet, said plug having a head at its upper end and an external flange adapted to cover the outlet end of said shell.

3. A device of the class described comprising a spherically formed shell having an inlet at one end and an outlet at the other end, a tubular plug passing through said shell and adjustable therethrough in alinement with the inlet thereof, said plug having a on shaped head at its upper end and an externa flange adapted to cover the outlet end of said shell, an auxiliary outlet through said cup shaped head, and means to close said auxiliary outlet.

In testimony whereof, I afiix my signature in presence of two witnesses.

J. WINTHROP CAMPBELL.

WV itnesses THOMAS Cumin q, IRVING O. HUNT. 

